The reason why he made such a decision, Ye Bing also had his reasons.

According to some introductions of Tianxiangting and Natasha's explanation, Ye Bing could probably judge that Tianxiangting was also a place where brain energy was collected and stored.

This means that it does not produce brain energy itself, and it is humans who actually produce brain energy.

Although the security zone now has more than 20 people, old and young, men and women, but with the brain energy contributed by these 20 people, it is simply not enough to do anything.

If you want to achieve a certain scale in this area, you will have to wait at least until the new security zone is completed and the number of men at your disposal grows to more than 100.

Thinking like this, Ye Bing simply exhausted the remaining energy and exchanged it for six more gene enhancement injections.

In this way, the energy of the base was once again consumed, and there were still nine inferior magic crystals left, which were just used as energy reserves for the mechanical corps.

Although most of the mechanical soldiers have not yet been upgraded, Ye Bing does not plan to clean up zombies on a large scale in the near future, but if it is to deal with humans, this number of mechanical soldiers is enough for the time being.

Busy until the night, Ye Bing injected himself with a gene enhancement injection, and fell asleep.

But before the injection, Ye Bing gave a task to the four reconnaissance robots in the current base and the remaining miniature reconnaissance aircraft, that is-

Explore the terrain on the outskirts of the safe zone.

This work, in fact, could have been done a long time ago. However, since before the second catastrophe, the threat of zombies to Ye Bing was not so great, so Ye Bing didn't care much. Now that the zombies have become stronger, he should start to find out the distribution of zombies in a planned way.

In the future, Ye Bing still has a blueprint, that is, to formulate a complete map of the distribution of zombies in D City. I want to explore the entire D city. You can't do it with just a few scouting bots. But for now, at least, it is possible to feel within a kilometre of the perimeter of the security zone.

Start with a kilometer and gradually expand the area until you can figure out the entire neighborhood.

Once it is clear where there are more zombies and where there are fewer zombies, Ye Bing will also be able to target his future actions.

Early the next morning. When Ye Bing slowly opened his eyes, he only felt that his spirit was extremely refreshed, and his breathing was much smoother.

Although there is still a lot of dirt oozing out of the cells, I can feel the improvement.

He loved the feeling, the feeling of getting stronger, the feeling of evolving.

He firmly believes that as long as there is such a development every day in the future, he will one day be as powerful as a Hulk zombie with his bare hands!

As for the more powerful corpses...... This depends on fate.

But it's not entirely impossible.

It's not a boast, who let him succeed in killing a corpse early?

Although it was only a primary-class corpse. But a first-class corpse is also a corpse, right?

All in all, he is very optimistic about the future.

After taking a simple shower and replenishing solid nutrients, Ye Bing sat back on the main console again.

He looked at the data of the main base and found that the energy column had indeed changed to a state of "41+48" again.

This means that there are 41 more energy points and 55 inferior magic crystals in the base.

The reason for this is that there is such a harvest. It's because Natasha didn't sleep while he was sleeping.

As the most dedicated main base of the brain. The whole purpose of Natasha's existence is to make the base grow quickly and steadily.

Therefore, when Ye Bing fell asleep, Natasha mobilized the mechanical corps and blocked the entrance of the offensive and defensive area to form the last line of defense in the offensive and defensive area. At the same time, with the four defense towers of the base, the heads of the zombies were collected one after another.

Although all this happened during Ye Bing's sleep time. But he had already received Ye Bing's approval.

After getting along for such a long time, Natasha's reliable image has long been deeply rooted in Ye Bing's heart. Whether Ye Bing is there or not, she can always keep the base in order.

Therefore, when Natasha proposed that she could use her free time to earn a "extra money" at the base, Ye Bing agreed without even hesitation.

But. He still explained a note to Natasha.

That is, don't be greedy. The number of zombies hunted every day must be controlled within a hundred.

In addition, the fewer zombies you attract each time, the better, don't too much, especially avoid attracting sentinel zombies, otherwise with the current defense capability of the base, it is estimated that it will be quite unbearable.

For Ye Bing's advice, Natasha implemented them one by one.

According to the number of new magic crystals added to the base, Natasha hunted a total of 48 zombies that night, and at the same time, the corpses of these zombies were thrown into the energy recovery tower to provide additional energy, and these energies plus the energy absorbed by the solar crystal panels totaled 41 points.

In this way, in just one night, the base has gained a total of 89 energy points!

In this way, the disadvantages and advantages of the secondary mutation are quickly apparent.

Although the outside world has become more risky, the return coefficient has also increased a lot, and this is still under the condition that Ye Bing tries his best to control.

If you let Natasha hunt zombies wave after wave, how can she get 200 points of energy a day, but this practice is tantamount to killing chickens and eggs.

Now, the secret of the security zone has been leaked, and there may be how many ill-intentioned people will grope around here in the future, and it is all up to the circle of zombies in the outside world to keep the base in secrecy for a long time.

But now, because the strength of the base is still too small, and Ye Bing is not clear about the external environment, he can only collect taxes from the zombies around the base to earn a guaranteed salary.

Once the new security zone is established and the forces under his command have developed, Ye Bing will definitely shift his focus to the world outside the base as soon as possible and go outside to "forage".

Energy storage aside.

Ye Bing jumped the screen again.

A miniature version of the map instantly appeared on the screen.

Looking at the image of the area, the streets, and the surrounding buildings, it is clear that this is a miniature map with the security zone as the center.

This map was commissioned by Ye Bing to draw Natasha.

It's not accurate to say it's drawing.

The general shape of the streets and buildings, Natasha directly searched for the existing technology of human beings, and casually obtained it from databases such as Baidu Maps and Gaode Maps.

In reality, all Natasha did was mark the number of zombies in each lot with red dots of different sizes.

As for the specific quantity, Ye Bing only needs to click on the red dot to get it, which is very convenient to use. (To be continued.) )